description
Gear hobs • Accuracy requirements
ISO 4468:2009
ISO 4468:2009
Gear hobs • Accuracy requirements, specifies requirements for the accuracy of general purpose hobs of 0.5 module to 40 module. The standard applies to hobs for spur and helical gears. Elemental features are graded according to accuracy from Grade 4A through Grade D. In addition to elemental tests, it gives permitted tolerances for composite tests that are taken along the cutting edge on the line of action.
150.00